package com.lpf.chain;

// 具体处理器 - 处理账单问题
class BillingSupportHandler extends Handler {
    @Override
    public void handleRequest(String request) {
        if (request.contains("billing")) {
            System.out.println("BillingSupportHandler: Handling billing issue.");
        } else if (nextHandler != null) {
            nextHandler.handleRequest(request);
        }
    }
}
